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United States Patent | 5,018,755 |
McNeilus ,   et al. | May 28, 1991 |
The present invention is directed to a pneumatic system for (a) raising and lowering the tag axle assembly and (b) applying a variable downward force to the wheels of the tag axle assembly when the wheels are in their ground engaging position. This system disclosed is intended to be tied into the pneumatic brake system which comes standard on most heavy duty work vehicles. The entire system is also controllable from the vehicle's cab.
Inventors: | McNeilus; Garwin (Dodge Center, MN); Christenson; Ronald E. (Kasson, MN) |
Assignee: | McNeilus Truck and Manufacturing, Inc. (Dodge Center, MN) |
Appl. No.: | 469175 |
Filed: | January 24, 1990 |
Current U.S. Class: | 280/81.1; 180/24.02; 280/86.5; 280/DIG.1 |
Intern'l Class: | B60P 001/00; B62D 061/12 |
Field of Search: | 280/80.1,81.1,764.1,767,712,686,43.23,704,711,DIG. 1 180/24.02 |
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